Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Paul M. Payson"'
Publikováno v:
Fiber and Integrated Optics. 19:137-154
This paper presents several photonic architectures for independently steering multiple broadband nulls for linear and conformal phased array antennas. Analytic expres sions that quantify bandwidth requirements are developed and both experimental and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d4561df6ff33a8d1fb7f1bb9847c5b5
https://doi.org/10.1080/014680300244413
https://doi.org/10.1080/014680300244413
Autor:
F.D. Nash, Ying-Hao Kuo, Larry R. Dalton, George A. Brost, J.R. Caffey, Paul M. Payson, Alex K.-Y. Jen, Attila Szep, Jingdong Luo, B.F. McKeon, P.R. Cook, Richard J. Michalak, F. Haas, W.H. Steier
Publikováno v:
IEEE Photonics Technology Letters. 18:1207-1209
High-speed polymer modulators were fabricated using low-Vpi AJL8 chromophore in amorphous polycarbonate, and highly calibrated frequency response measurements were obtained using convenient coplanar-microstrip transitions. These Mach-Zehnder modulato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0ab2831a9cdfbd9f64b2592181d68f2
https://doi.org/10.1109/lpt.2006.874679
https://doi.org/10.1109/lpt.2006.874679
Publikováno v:
IEEE Photonics Technology Letters. 18:514-516
Numerical simulations were used to study the effect of electrode loss on the two-tone spur-free dynamic range (SFDR) of analog photonic links with linearized directional coupler modulators. Radio-frequency loss in the traveling wave electrode signifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e0835787a84758bc964a6e4d14f6c53
https://doi.org/10.1109/lpt.2005.863170
https://doi.org/10.1109/lpt.2005.863170
Publikováno v:
IEEE Photonics Technology Letters. 10:725-727
This letter presents a novel architecture for independently steering broad-band nulls for phased array antennas. Measurements taken over a ten percent fractional bandwidth on a three-element proof-of-concept system shows a null depth of better than 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7677057d45a3748e242c297738da515
https://doi.org/10.1109/68.669402
https://doi.org/10.1109/68.669402
Publikováno v:
IEEE Photonics Technology Letters. 9:241-243
This letter presents, for the first time, measured data on a Bragg reflection grating based fiber-optic prism true time delay processor for transmit/receive phased array beamforming. Measurements taken over a 3.5-GHz bandwidth demonstrates high resol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a136a0c0e0f236424c85f8d01a0e4ece
https://doi.org/10.1109/68.553105
https://doi.org/10.1109/68.553105
Described is a modular photonic RF link test bed integrated with the C-band radar operated by the Air Force Research Laboratory Sensors Directorate s Radar Technology Branch (SNRT). This flexible, multi-channel, test bed allows in-situ testing and ev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb7b05ab8272b2fb98e947ae91aa8a07
https://doi.org/10.21236/ada426892
https://doi.org/10.21236/ada426892
Autor:
John S. Zetts, Richard J. Michalak, Franz Haas, Brian McKeon, B. Flushe, Fazio Nash, Edward W. Taylor, Emily M. Heckman, James G. Grote, Attila Szep, Paul M. Payson, James E. Nichter, Paul R. Cook, Perry P. Yaney, Andrew R. Pirich, Thomas E. McEwan, George A. Brost
Publikováno v:
SPIE Proceedings.
Two second-order nonlinear optical chromophoric materials were investigated for their response to gamma-ray irradiations for doses ranging from approximately 10-104 krad(Si). Thin film polymer modulators composed of a mixture of amorphous polycarbona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::154f6aabf57ae9766b75b60b854be89b
https://doi.org/10.1117/12.510380
https://doi.org/10.1117/12.510380
Autor:
James R. Hunter, George A. Brost, Norman P. Bernstein, James E. Nichter, Paul L. Repak, Michael J. Hayduk, Paul M. Payson
Publikováno v:
SPIE Proceedings.
Future space-based platforms can and will benefit from the implementation of photonics in both analog and digital subsystems. This paper will discuss potential applications and advantages to the platforms through the use of photonics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89f41bb4607f51b5483c5df94c0e5100
https://doi.org/10.1117/12.399378
https://doi.org/10.1117/12.399378
Publikováno v:
SPIE Proceedings.
This paper presents a photonic architecture for independently steering the broadband nulls of linear and conformal phased array antennas. Analytic expressions quantifying bandwidth requirements are developed and simulation results demonstrating array
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5a9a17442b34df74449ce49a60a11d8
https://doi.org/10.1117/12.391901
https://doi.org/10.1117/12.391901
Publikováno v:
SPIE Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8b11b871ccb9663526e2742eb350d75
https://doi.org/10.1117/12.330376
https://doi.org/10.1117/12.330376